M00044411
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European Telecommunications Standards Institute
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Availability date: 11/06/2021
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Foreword
1 Scope
2 References
3 General requirements
3.1 Construction
3.2 Switching time
3.3 Frequencies
3.4 Classes of emission
3.5 Controls and indicators
3.6 Facilities for equipment for coding and decoding
of DSC
3.7 Alarm circuits
3.8 Interfaces between DSC equipment and external
circuits
3.9 Safety precautions
3.10 Compass safe distance
3.11 Instructions
3.12 Warming-up period
4 Test conditions
4.1 General
4.2 Generation and examination of the digital selective
call signal
4.3 Standard test signals
4.4 Determination of the symbol error rate in the output
of the receiving part
4.5 Impedance of test signal sources
4.6 Connection of test signals
4.7 Test power source
4.8 Internally generated signals
4.9 Normal test conditions
4.10 Extreme test conditions
4.11 Environmental tests
4.12 Measurement uncertainty and interpretation of the
measuring result
5 MF/HF transmitter with integrated DSC encoder
5.1 Frequency error
5.2 RF output power
5.3 Modulation rate
5.4 Residual modulation of the transmitter
5.5 Unwanted emission
5.6 Testing of generated call sequences
5.7 Tuning time
5.8 Protection of transmitter
6 VHF transmitter with integrated DSC encoder
6.1 Frequency error (carrier)
6.2 Frequency error (demodulated signal)
6.3 Carrier power
6.4 Modulation index
6.5 Modulation rate
6.6 Residual modulation of the transmitter
6.7 Adjacent channel power
6.8 Conducted spurious emissions conveyed to the antenna
6.9 Testing of generated call sequences
6.10 Transient frequency behaviour of the transmitter
7 MF/HF DSC encoder
7.1 Frequency error
7.2 Output voltage
7.3 Bit stream speed
7.4 Unwanted spectral components of the output signal
7.5 Testing of generated call sequences
7.6 Residual frequency modulation
8 VHF DSC encoder
8.1 Frequency error
8.2 Output voltage
8.3 Bit stream speed
8.4 Unwanted spectral components of the output signal
8.5 Testing of generated call sequences
8.6 Residual frequency modulation
9 MF/HF receiver with integrated DSC decoder
9.1 Scanning watch receiver efficiency
9.2 Calling sensitivity
9.3 Adjacent channel selectivity
9.4 Co-channel rejection
9.5 RF intermodulation response
9.6 Interference rejection and blocking immunity
9.7 Dynamic range
9.8 Conducted spurious emissions
9.9 Verification of correct decoding of various types of
digital selective calls
9.10 Protection of receiver antenna input circuits
10 VHF receiver with integrated DSC decoder
10.1 Maximum usable sensitiv
10.2 Co-channel rejection
10.3 Adjacent channel selectivity
10.4 Spurious response and blocking immunity
10.5 Intermodulation response
10.6 Dynamic range
10.7 Conducted spurious emissions
10.8 Verification of correct decoding of various types
of digital selective calls
11 MF/HF DSC decoder
11.1 Interface for scanning
11.2 Scanning efficiency
11.3 Dynamic range
11.4 Verification of correct decoding of various types of
digital selective calls
12 VHF DSC decoder
12.1 Dynamic range
12.2 Verification of correct decoding of various types of
digital selective calls
Annex A (normative): Test calls
A.1 Types of calls to be tested
A.2 Telecommands applicable to DSC shipborne equipment
Annex B (normative): Specifications for adjacent channel
power measurement arrangements
B.1 Power measuring receiver specification
History
Prepares an urgent technical correction (A1) to ETS 300 338. Test method for Residual frequent Modulation in MF/HF DSC encoder to be corrected.
Published | |
Document Type | Standard |
Status | Current |
Publisher | European Telecommunications Standards Institute |
Pages | |
ISBN | |
Committee | ERM RP01 |